No, squatted trucks—vehicles modified to sit lower than manufacturer specifications—are not inherently illegal in the UK, but their legality hinges on compliance with roadworthiness, construction, and use regulations enforced by the Driver and Vehicle Standards Agency (DVSA) and local authorities. Modifications must not compromise safety, visibility, or emissions standards, and improper alterations risk MOT failure or prosecution under the Road Vehicles (Construction and Use) Regulations 1986.
Key Regulations for Squatted Trucks in United Kingdom
- Roadworthiness Standards: Any modification must not impair the vehicle’s structural integrity, braking, or lighting systems, as mandated by the DVSA’s Guide to Vehicle Modifications. Non-compliance can result in an immediate MOT failure.
- Emissions and Noise: Squatted trucks must adhere to Euro 6/VI emissions standards and not exceed legal noise limits (74 dB for heavy goods vehicles), per the Road Vehicles (Construction and Use) (Amendment) (EU Exit) Regulations 2020.
- Local Authority Enforcement: Councils may restrict modified vehicles from designated low-emission zones (e.g., London’s ULEZ) or issue fines for excessive exhaust noise under the Environmental Protection Act 1990. The 2026 expansion of Clean Air Zones will tighten scrutiny.
Operators must retain modification documentation and ensure vehicles meet Construction and Use requirements. Failure to do so may lead to insurance invalidation or prosecution under the Road Traffic Act 1988. DVSA spot checks increasingly target modified commercial vehicles, particularly in urban areas.